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Introduction to Linux - A Hands on Guide

This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.

Mixing releases can be necessary when you need a more up-to-date version of a software in a system running on package management and not (yet) providing later package versions.

For example, we need the latest git on your Debian Lenny system, because you updated your Eclipse plugins, and now the git integration refuses to work with your old client. Shoot! Let's check what to do to fix this...

Creating an installation stick with Ubuntu seems to be a piece of a cake nowadays. Ubuntu does provide a tool, the "Startup Disk Creator" (System > Administration > Startup Disk Creator) which frees novice Linux users from knowing operating system level details. At least it seems.

I regularly notice, either in my Linux courses or in discussions with other proficient Linux users, that the tool on Ubuntu typically doesn't make sticks boot out-of-the-box. Usually, this...

When you write scripts dealing with setting up or analyzing network interfaces you will eventually run into the task of converting a netmask from one format into another.

Typically, the setup of an ethernet TCP/IP network interface consists of an IP address, a netmask, and a broadcast address. Unfortunately for you as a novice, the two tools ifconfig and ip show the same (or similar) information in a different format.

The Intel Modular Server is a complete server system designed to simplify a complex fail-safe IT environment. One characteristic is that it provides virtual disks and two storage controllers for redundancy. Systems that use those virtual disks have two physical paths to access their disk(s). (NOTE: This is not a RAID solution against disk defects, but safeguards against a breakdown of a storage controller!)

When you install and boot Linux on such a machine you will see both paths...